Abstract
Abstract Root formation on leafy cuttings of Pisum sativum L. ‘Alaska’ was reduced by about 50% when net photosynthesis was adjusted to the compensation point by reducing the light intensity, reducing the CO 2 concentration, or by blocking CO 2 exchange with an antitranspirant. Rooting was also reduced by 50% when cuttings were given only enough photoperiod at saturating light to maintain a carbon balance similar to that of the treatments which reduced net photosynthesis to the compensation point. In addition to decreasing rooting, these treatments lowered sucrose and glucose levels in the basal portion of the cuttings compared to controls. Our photosynthesis and carbohydrate data indicate that the supply of current photosynthate to the base of pea cuttings is important to rooting.
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Claims 6
Claim · model-written summary
Reduced light to the photosynthetic compensation point reduced rooting by about 50%.
- Taxon
- Pisum sativum
Lathyrus oleraceuse0 - Material
- ‘Alaska’e0
- Treatment
- reducing the light intensitye0
- Outcome
- Root formatione0
- Direction
- reducede0
- Value
- about 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root formation on leafy cuttings of Pisum sativum L. ‘Alaska’ was reduced by about 50% when net photosynthesis was adjusted to the compensation point by reducing the light intensity”
Claim · model-written summary
Reduced carbon dioxide to the compensation point reduced rooting by about 50%.
- Taxon
- Pisum sativumLathyrus oleraceuse0
- Treatment
- reducing the CO 2 concentratione0
- Outcome
- Root formatione0
- Direction
- reducede0
- Value
- about 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root formation on leafy cuttings of Pisum sativum L. ‘Alaska’ was reduced by about 50% when net photosynthesis was adjusted to the compensation point by reducing the light intensity, reducing the CO 2 concentration”
Claim · model-written summary
Blocking carbon dioxide exchange with antitranspirant reduced rooting by about 50%.
- Taxon
- Pisum sativumLathyrus oleraceuse0
- Treatment
- blocking CO 2 exchange with an antitranspirante0
- Outcome
- Root formatione0
- Direction
- reducede0
- Value
- about 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root formation on leafy cuttings of Pisum sativum L. ‘Alaska’ was reduced by about 50% when net photosynthesis was adjusted to the compensation point by reducing the light intensity, reducing the CO 2 concentration, or by blocking CO 2 exchange with an antitranspirant”
Claim · model-written summary
A limited photoperiod at saturating light reduced rooting by 50%.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- only enough photoperiod at saturating lighte0
- Outcome
- Rootinge0
- Direction
- reducede0
- Value
- 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rooting was also reduced by 50% when cuttings were given only enough photoperiod at saturating light to maintain a carbon balance similar to that of the treatments which reduced net photosynthesis to the compensation point”
t0“Pea Cuttings1”
Claim · model-written summary
The rooting-suppressing treatments lowered basal sucrose and glucose relative to controls.
- Taxon
- PeaLathyrus oleraceust0
- Organ / stage
- basal portion of the cuttingse0
- Treatment
- these treatmentse0
- Outcome
- sucrose and glucose levelse0
- Direction
- lowerede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these treatments lowered sucrose and glucose levels in the basal portion of the cuttings compared to controls”
t0“Pea Cuttings1”
Claim · model-written summary
Current photosynthate supply to cutting bases is important for rooting.
- Taxon
- peaLathyrus oleraceuse0
- Outcome
- rootinge0
- Qualifier
- supply of current photosynthatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the supply of current photosynthate to the base of pea cuttings is important to rooting”
The same questions in other papers
co2 · growth · Lathyrus oleraceus (pea)Results differ
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- positive
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See all 59 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.